Web Security Tool

SSL Certificate Checker

Verify if a website is secure (HTTPS). Check the SSL certificate issuer, validity period, and expiration date instantly.

Why is SSL Security Crucial?

Protects User Data

SSL encrypts the data transferred between a user's browser and your server. Without it, passwords and credit cards can be stolen.

Boosts SEO Ranking

Google officially lists HTTPS as a ranking signal. Websites without SSL are flagged as "Not Secure" in Chrome.

Builds Trust

If you plan to accept payments online, you absolutely need an SSL certificate. No payment gateway works without one.

Common SSL Errors We Detect

  • Expired Certificate: The most common error. Certificates are usually valid for 90 days (Let's Encrypt) or 1 year.
  • Name Mismatch: The certificate is issued for www.example.com but you are visiting example.com.
  • Untrusted Authority: The certificate is self-signed and not verified by a trusted CA like DigiCert.